Establishment of Quantitative Equation for the Mechanical Wear of Ceramics

陶瓷机械磨损定量方程的建立

• 批准号: 8814312
• 负责人: Traugott Fischer
• 金额: $ 30.01万
• 依托单位: Stevens Institute of Technology
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1988
• 资助国家: 美国
• 起止时间: 1988-10-01 至 1992-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8814312&HistoricalAwards=false
• 关键词: Establishment; Quantitative; Equation; Mechanical; Wear

Ceramic triboelements are increasingly being used to solve tribological problems under severe service conditions. The performance varies significantly, depending strongly on operating conditions and on material, and is currently not clearly predictable from first principles. This study will attempt to remedy this problem and develop a quantitative relationship between wear behavior, operating conditions, and material properties and microstructure. The wear mechanisms and wear performance of a number of ceramic materials under dry sliding conditions will be determined by wear measurements and high-resolution microscopy of the worn surface and the subsurface material. The wear behavior will be correlated with commonly measured micro-mechanical properties, such as micro-hardness and indentation fracture toughness, and with microstructure.

陶瓷摩擦元件越来越多地用于解决恶劣使用条件下的摩擦学问题。性能差异很大，很大程度上取决于操作条件和材料，目前还不能根据第一原理清楚地预测。 这项研究将尝试解决这个问题，并建立磨损行为、操作条件、材料性能和微观结构之间的定量关系。许多陶瓷材料在干滑动条件下的磨损机制和磨损性能将通过磨损表面和表面下材料的磨损测量和高分辨率显微镜来确定。磨损行为将与通常测量的微观机械性能（例如微观硬度和压痕断裂韧性）以及微观结构相关。